Tenaris SA
TS- Exchange
- NYSE
- Industry
- Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens)
- SEC CIK
- 0001190723
No open-market purchases or sales by Tenaris SA insiders were filed in the last 90 days; 285 institutions reported holding it in 13F filings for Q2 2026, worth $2.13B in total; no superinvestor holds it.
Other share classesTNRSF
13F holders, Q1 2026
Institutional positions in Tenaris SA as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 264
- +38 vs. Q4 2025
- Shares held
- 39.3M
- +6.43M (+19.5%) vs. Q4 2025
- Total value
- $2.29B
- +$1.02B (+80.9%) vs. Q4 2025
- New holders
- 70
- 87 more added
- Sold out
- 32
- 66 more reduced
3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting TS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 285 | $2.13B |
| Q1 2026 | 264 | $2.29B |
| Q4 2025 | 229 | $1.27B |
| Q3 2025 | 223 | $1.28B |
| Q2 2025 | 223 | $1.71B |
| Q1 2025 | 227 | $2.01B |
| Q4 2024 | 234 | $1.90B |
| Q3 2024 | 201 | $1.60B |
| Q2 2024 | 224 | $1.70B |
| Q1 2024 | 236 | $2.19B |
| Q4 2023 | 222 | $2.16B |
| Q3 2023 | 216 | $1.94B |
| Q2 2023 | 201 | $1.93B |
| Q1 2023 | 227 | $1.74B |
| Q4 2022 | 218 | $2.07B |
| Q3 2022 | 179 | $1.66B |
| Q2 2022 | 182 | $1.61B |
| Q1 2022 | 182 | $2.08B |
| Q4 2021 | 144 | $1.04B |
| Q3 2021 | 130 | $1.03B |
| Q2 2021 | 143 | $1.19B |
| Q1 2021 | 127 | $1.32B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Tenaris SA; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Bridgewater Associates, LP | 28,630 | $1.67M | 0.01% | +28,630 | New |
| American Century Companies Inc | 28,734 | $1.67M | 0.00% | +11,209+64.0% | Added |
| Bank of Montreal | 30,336 | $1.76M | 0.00% | +24,650+433.5% | Added |
| Cerity Partners LLC | 31,623 | $1.84M | 0.00% | +1,572+5.2% | Added |
| Caitong International Asset Management Co., Ltd | 32,213 | $1.87M | 0.35% | +32,207+536,783.3% | Added |
| Skopos Labs, Inc. | 32,676 | $1.90M | 0.06% | +14,800+82.8% | Added |
| New York State Common Retirement Fund | 33,399 | $1.94M | 0.00% | −9,420−22.0% | Reduced |
| Mercer Global Advisors Inc | 33,637 | $1.96M | 0.00% | −6,555−16.3% | Reduced |
| HRT Financial LP | 39,774 | $2.31M | 0.01% | +39,774 | New |
| Pathstone Holdings, LLC | 40,287 | $2.34M | 0.01% | +1,500+3.9% | Added |
| Mariner, LLC | 40,307 | $2.34M | 0.00% | +9,082+29.1% | Added |
| Campbell & CO Investment Adviser LLC | 41,043 | $2.39M | 0.14% | +41,043 | New |
| Lighthouse Investment Partners, LLC | 42,500 | $2.47M | 0.09% | +6,500+18.1% | Added |
| Vident Advisory, LLC | 43,041 | $2.50M | 0.02% | +25,791+149.5% | Added |
| Highland Capital Management, LLC | 43,920 | $2.56M | 0.14% | −150−0.3% | Reduced |
| Wells Fargo & Company | 44,387 | $2.58M | 0.00% | +35,663+408.8% | Added |
| O'Shaughnessy Asset Management, LLC | 44,417 | $2.58M | 0.01% | −8,319−15.8% | Reduced |
| Crossmark Global Holdings, Inc. | 48,485 | $2.82M | 0.04% | −1,251−2.5% | Reduced |
| Guggenheim Capital LLC | 49,646 | $2.89M | 0.02% | +13,477+37.3% | Added |
| Manning & Napier Advisors LLC | 52,491 | $3.05M | 0.04% | −1,417−2.6% | Reduced |
| Charles Schwab Investment Management Inc | 57,342 | $3.34M | 0.00% | +5,558+10.7% | Added |
| Lazard Asset Management LLC | 58,252 | $3.39M | 0.01% | +284+0.5% | Added |
| Citigroup Inc | 61,446 | $3.57M | 0.00% | +13,411+27.9% | Added |
| GTS Securities LLC | 62,686 | $3.65M | 0.13% | +62,686 | New |
| Integrated Quantitative Investments LLC | 66,798 | $3.89M | 0.70% | +23,979+56.0% | Added |
| Millennium Management LLC | 68,723 | $4.00M | 0.00% | −87,483−56.0% | Reduced |
| Creative Planning | 72,820 | $4.24M | 0.00% | +15,008+26.0% | Added |
| Leuthold Group, LLC | 83,994 | $4.89M | 0.52% | +83,994 | New |
| Aventail Capital Group, LP | 87,367 | $5.08M | 0.25% | +26,204+42.8% | Added |
| Silvercrest Asset Management Group LLC | 100,738 | $5.86M | 0.04% | −1,395−1.4% | Reduced |
| Jane Street Group, LLC | 100,838 | $5.87M | 0.01% | +100,838 | New |
| Fearnley Asset Management AS | 112,700 | $6.56M | 2.14% | +64,700+134.8% | Added |
| Ethic Inc. | 125,572 | $7.31M | 0.11% | −18,552−12.9% | Reduced |
| AQR Capital Management LLC | 145,427 | $8.46M | 0.00% | +34,570+31.2% | Added |
| National Bank of Canada | 145,855 | $8.48M | 0.01% | +145,855 | New |
| Quantinno Capital Management LP | 146,347 | $8.51M | 0.01% | +25,271+20.9% | Added |
| Legal & General Group Plc | 146,515 | $8.52M | 0.00% | −21,528−12.8% | Reduced |
| Bank of America Corp | 158,437 | $9.22M | 0.00% | −178,781−53.0% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 178,439 | $10.4M | 0.02% | +178,439 | New |
| State Street Corp | 203,178 | $11.8M | 0.00% | +2,517+1.3% | Added |
| Kiltearn Partners LLP | 204,859 | $11.9M | 3.21% | −44,000−17.7% | Reduced |
| Northern Trust Corp | 217,898 | $12.7M | 0.00% | −7,123−3.2% | Reduced |
| Capital Wealth Planning, LLC | 240,514 | $14.0M | 0.08% | +240,514 | New |
| Medina Singh Partners, LLC | 253,362 | $14.7M | 3.09% | −308,133−54.9% | Reduced |
| Citadel Advisors LLC | 292,423 | $17.0M | 0.01% | −639,973−68.6% | Reduced |
| Harding Loevner LP | 292,858 | $17.0M | 0.18% | −18,424−5.9% | Reduced |
| Carrhae Capital LLP | 337,428 | $19.6M | 1.39% | +337,428 | New |
| Grantham, Mayo, Van Otterloo & Co. LLC | 347,584 | $20.2M | 0.05% | +15,346+4.6% | Added |
| Assetmark, Inc | 490,777 | $28.6M | 0.06% | −13,140−2.6% | Reduced |
| UBS Group AG | 498,978 | $29.0M | 0.01% | +276,246+124.0% | Added |
| CWA Asset Management Group, LLC | 506,550 | $29.5M | 1.01% | +506,550 | New |
| Massachusetts Financial Services Co | 646,854 | $38.1M | 0.01% | −9,585−1.5% | Reduced |
| BlackRock, Inc. | 715,791 | $41.6M | 0.00% | +19,347+2.8% | Added |
| Goldman Sachs Group Inc | 720,894 | $41.9M | 0.01% | −98,682−12.0% | Reduced |
| Driehaus Capital Management LLC | 888,346 | $51.7M | 0.38% | +888,346 | New |
| Dimensional Fund Advisors LP | 1,121,007 | $65.2M | 0.01% | −113,821−9.2% | Reduced |
| Invesco Ltd. | 1,168,472 | $68.0M | 0.01% | +622,268+113.9% | Added |
| Morgan Stanley | 1,178,069 | $68.5M | 0.00% | +8,381+0.7% | Added |
| Price T Rowe Associates Inc | 1,445,210 | $84.1M | 0.01% | −204,514−12.4% | Reduced |
| Wellington Management Group LLP | 2,405,034 | $139.9M | 0.03% | −277,103−10.3% | Reduced |
| Van Eck Associates Corp | 2,893,032 | $168.3M | 0.13% | +873,847+43.3% | Added |
| Renaissance Technologies LLC | 3,199,744 | $186.2M | 0.29% | +235,400+7.9% | Added |
| Westwood Global Investments, LLC | 6,673,718 | $388.3M | 14.47% | −598,686−8.2% | Reduced |
| FMR LLC | 8,251,759 | $480.1M | 0.03% | +6,053,126+275.3% | Added |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −471,555−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −346,283−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −266,087−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −228,960−100.0% | Sold out |
| Corigliano Investment Advisers, LLC | 0 | $0 | 0.00% | −157,700−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −126,422−100.0% | Sold out |
| Old Mission Capital LLC | 0 | $0 | 0.00% | −117,117−100.0% | Sold out |
| Blackstone Group Inc. | 0 | $0 | 0.00% | −84,597−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −81,396−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −63,601−100.0% | Sold out |
| Exencial Wealth Advisors, LLC | 0 | $0 | 0.00% | −35,192−100.0% | Sold out |
| Capital Fund Management S.A. | 0 | $0 | 0.00% | −21,818−100.0% | Sold out |
| Vestmark Advisory Solutions, Inc. | 0 | $0 | 0.00% | −21,541−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −21,106−100.0% | Sold out |
| Commonwealth Equity Services, LLC | 0 | $0 | 0.00% | −11,469−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −11,186−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −7,946−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −7,545−100.0% | Sold out |
| West Family Investments, Inc. | 0 | $0 | 0.00% | −6,481−100.0% | Sold out |
| Total Wealth Planning & Management, Inc. | 0 | $0 | 0.00% | −6,337−100.0% | Sold out |
| Forum Financial Management, LP | 0 | $0 | 0.00% | −5,375−100.0% | Sold out |
| Edmond de Rothschild Holding S.A. | 0 | $0 | 0.00% | −3,200−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −1,738−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −421−100.0% | Sold out |
| SageView Advisory Group, LLC | 0 | $0 | 0.00% | −256−100.0% | Sold out |
| Atlas Capital Advisors LLC | 0 | $0 | 0.00% | −108−100.0% | Sold out |
| Cape Investment Advisory, Inc. | 0 | $0 | 0.00% | −73−100.0% | Sold out |
| Signature Equity Partners, LLC | 0 | $0 | 0.00% | −55−100.0% | Sold out |
| Elyxium Wealth, LLC | 0 | $0 | 0.00% | −35−100.0% | Sold out |
| Independence Bank of Kentucky | 0 | $0 | 0.00% | −16−100.0% | Sold out |
| St Germain D J Co Inc | 0 | $0 | 0.00% | −14−100.0% | Sold out |
| Cullen/Frost Bankers, Inc. | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |
| CIBC Private Wealth Group, LLC | – | – | – | – | Not filed |